Added a gutter and currentline highlighting to the SQL editor.

Currently gutter only shows linenumbers. Code is mostly from http://doc.qt.io/qt-5/qtwidgets-widgets-codeeditor-example.html

There is a little bit included in this commit from a first try to make toobars adept to the current tab.

Code #2

pglab/CodeEditor.cpp

@@ -0,0 +1,112 @@
+#include "CodeEditor.h"
+#include "EditorGutter.h"
+#include <QPainter>
+#include <QTextBlock>
+//
+// Adapted from codeeditor example
+// http://doc.qt.io/qt-5/qtwidgets-widgets-codeeditor-example.html
+//
+// Used term gutter as I want to expand it to do other things to like error
+// position marking.
+//
+
+CodeEditor::CodeEditor(QWidget *parent)
+	: QPlainTextEdit(parent)
+	, gutterArea(new EditorGutter(this))
+{
+	connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateGutterAreaWidth(int)));
+	connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateGutterArea(QRect,int)));
+	connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));
+
+	updateGutterAreaWidth(0);
+	highlightCurrentLine();
+}
+
+int CodeEditor::gutterAreaWidth()
+{
+	int digits = 1;
+	int max = qMax(1, blockCount());
+	while (max >= 10) {
+		max /= 10;
+		++digits;
+	}
+
+	int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits;
+
+	return space;
+}
+
+void CodeEditor::updateGutterAreaWidth(int /* newBlockCount */)
+{
+	setViewportMargins(gutterAreaWidth(), 0, 0, 0);
+}
+
+void CodeEditor::updateGutterArea(const QRect &rect, int dy)
+{
+	if (dy)
+		gutterArea->scroll(0, dy);
+	else
+		gutterArea->update(0, rect.y(), gutterArea->width(), rect.height());
+
+	if (rect.contains(viewport()->rect()))
+		updateGutterAreaWidth(0);
+}
+
+void CodeEditor::resizeEvent(QResizeEvent *e)
+{
+	QPlainTextEdit::resizeEvent(e);
+
+	QRect cr = contentsRect();
+	gutterArea->setGeometry(QRect(cr.left(), cr.top(), gutterAreaWidth(), cr.height()));
+}
+
+void CodeEditor::highlightCurrentLine()
+{
+	QList<QTextEdit::ExtraSelection> extraSelections;
+
+	if (!isReadOnly()) {
+		QTextEdit::ExtraSelection selection;
+
+		QColor lineColor = QColor(Qt::yellow).lighter(160);
+
+		selection.format.setBackground(lineColor);
+		selection.format.setProperty(QTextFormat::FullWidthSelection, true);
+		selection.cursor = textCursor();
+		selection.cursor.clearSelection();
+		extraSelections.append(selection);
+	}
+
+	setExtraSelections(extraSelections);
+}
+
+void CodeEditor::gutterAreaPaintEvent(QPaintEvent *event)
+{
+	QPainter painter(gutterArea);
+	painter.fillRect(event->rect(), Qt::lightGray);
+
+	QTextBlock block = firstVisibleBlock();
+	int blockNumber = block.blockNumber();
+	int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
+	int bottom = top + (int) blockBoundingRect(block).height();
+
+	// We will now loop through all visible lines and paint the line numbers in the
+	// extra area for each line. Notice that in a plain text edit each line will
+	// consist of one QTextBlock; though, if line wrapping is enabled, a line may span
+	// several rows in the text edit's viewport.
+	//
+	// We get the top and bottom y-coordinate of the first text block, and adjust these
+	// values by the height of the current text block in each iteration in the loop.
+	while (block.isValid() && top <= event->rect().bottom()) {
+		if (block.isVisible() && bottom >= event->rect().top()) {
+			QString number = QString::number(blockNumber + 1);
+			painter.setPen(Qt::black);
+			painter.drawText(0, top, gutterArea->width(), fontMetrics().height(),
+							 Qt::AlignRight, number);
+		}
+
+		block = block.next();
+		top = bottom;
+		bottom = top + (int) blockBoundingRect(block).height();
+		++blockNumber;
+	}
+}

pglab/CodeEditor.h

@@ -0,0 +1,31 @@
+#ifndef CODEEDITOR_H
+#define CODEEDITOR_H
+
+#include <QPlainTextEdit>
+
+class CodeEditor : public QPlainTextEdit
+{
+	Q_OBJECT
+public:
+	explicit CodeEditor(QWidget *parent = nullptr);
+
+	void gutterAreaPaintEvent(QPaintEvent *event);
+	int gutterAreaWidth();
+
+protected:
+	void resizeEvent(QResizeEvent *event) override;
+
+signals:
+
+public slots:
+
+private slots:
+	void updateGutterAreaWidth(int newBlockCount);
+	void highlightCurrentLine();
+	void updateGutterArea(const QRect &, int);
+
+private:
+	QWidget *gutterArea;
+};
+
+#endif // CODEEDITOR_H

pglab/EditorGutter.cpp

@@ -0,0 +1,19 @@
+#include "EditorGutter.h"
+#include "CodeEditor.h"
+
+EditorGutter::EditorGutter(CodeEditor *editor)
+	: QWidget(editor)
+	, codeEditor(editor)
+{
+
+}
+
+QSize EditorGutter::sizeHint() const
+{
+	return QSize(codeEditor->gutterAreaWidth(), 0);
+}
+
+void EditorGutter::paintEvent(QPaintEvent *event)
+{
+	codeEditor->gutterAreaPaintEvent(event);
+}

pglab/EditorGutter.h

@@ -0,0 +1,28 @@
+#ifndef EDITORGUTTER_H
+#define EDITORGUTTER_H
+
+#include <QWidget>
+//#include <QPlainTextEdit>
+
+class CodeEditor;
+
+class EditorGutter : public QWidget
+{
+	Q_OBJECT
+public:
+	explicit EditorGutter(CodeEditor *editor);
+
+	QSize sizeHint() const override;
+
+protected:
+
+	void paintEvent(QPaintEvent *event) override;
+
+private:
+	CodeEditor *codeEditor;
+signals:
+
+public slots:
+};
+
+#endif // EDITORGUTTER_H

pglab/Module.cpp

@@ -0,0 +1,8 @@
+#include "Module.h"
+
+using namespace Leon;
+
+Module::Module()
+{
+
+}

pglab/Module.h

@@ -0,0 +1,15 @@
+#ifndef MODULE_H
+#define MODULE_H
+
+namespace Leon {
+
+class Module
+{
+public:
+	Module();
+
+};
+
+}
+
+#endif // MODULE_H

pglab/PglPage.cpp

@@ -0,0 +1,6 @@
+#include "PglPage.h"
+
+//PglPage::PglPage()
+//{
+
+//}

pglab/PglPage.h

@@ -0,0 +1,24 @@
+#ifndef PGLPAGE_H
+#define PGLPAGE_H
+
+#include <QWidget>
+
+/// Provides a pluggable system for toolbar buttons and menu actions
+///
+/// We will need several kind of actions
+/// - create actions, these will create a new document or load from file , always available in menu
+/// - save actions available when on tab
+/// - edit actions
+/// - custom menu?
+///
+/// Can we use same groupings for toolbars and menu's
+/// How about additional toolbars?
+///
+class PglPage: public QWidget{
+public:
+	using QWidget::QWidget;
+
+
+};
+
+#endif // PGLPAGE_H

pglab/QueryTab.cpp

@@ -22,7 +22,7 @@
 #include "GlobalIoService.h"
 
 QueryTab::QueryTab(MainWindow *win, QWidget *parent) :
-	QWidget(parent),
+	PglPage(parent),
 	ui(new Ui::QueryTab),
 	m_win(win),
 	m_dbConnection(*getGlobalAsioIoService())

pglab/QueryTab.h

@@ -8,6 +8,7 @@
 #include "tuplesresultwidget.h"
 
 #include <QWidget>
+#include "PglPage.h"
 #include <memory>
 
 namespace Ui {
@@ -27,7 +28,7 @@ class OpenDatabase;
 class QueryParamListController;
 class PgDatabaseCatalog;
 
-class QueryTab : public QWidget {
+class QueryTab : public PglPage {
 	Q_OBJECT
 public:
 	QueryTab(MainWindow *win, QWidget *parent = nullptr);

pglab/QueryTab.ui

@@ -23,7 +23,7 @@
       <property name="orientation">
        <enum>Qt::Horizontal</enum>
       </property>
-      <widget class="QPlainTextEdit" name="queryEdit"/>
+      <widget class="CodeEditor" name="queryEdit"/>
       <widget class="QFrame" name="frameParams">
        <property name="frameShape">
         <enum>QFrame::StyledPanel</enum>
@@ -213,6 +213,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>CodeEditor</class>
+   <extends>QPlainTextEdit</extends>
+   <header>CodeEditor.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections/>
 </ui>

pglab/pglab.pro

@@ -69,7 +69,11 @@ SOURCES += main.cpp\
     IndexModel.cpp \
     CrudTab.cpp \
     CrudModel.cpp \
-    PgLabItemDelegate.cpp
+    PgLabItemDelegate.cpp \
+    Module.cpp \
+    PglPage.cpp \
+    EditorGutter.cpp \
+    CodeEditor.cpp
 
 HEADERS  += \
     QueryResultModel.h \
@@ -110,7 +114,11 @@ HEADERS  += \
     IndexModel.h \
     CrudTab.h \
     CrudModel.h \
-    PgLabItemDelegate.h
+    PgLabItemDelegate.h \
+    Module.h \
+    PglPage.h \
+    EditorGutter.h \
+    CodeEditor.h
 
 FORMS    += mainwindow.ui \
 	ConnectionManagerWindow.ui \

pgsql/SqlGenerator.h

@@ -0,0 +1,15 @@
+#ifndef SQLGENERATOR_H
+#define SQLGENERATOR_H
+
+#include "Pgsql_Params.h"
+
+//namespace Pgsql {
+
+//template <typename >
+//class AndCondition {
+//	AndCondition& add(const std::string &expr,)
+//};
+
+} // end of namespace Pgsql
+
+#endif // SQLGENERATOR_H

pgsql/pgsql.pro

@@ -51,7 +51,8 @@ HEADERS  += Pgsql_Connection.h \
 	Pgsql_declare.h \
     Pgsql_Col.h \
     ArrayParser.h \
-    Pgsql_oids.h
+    Pgsql_oids.h \
+    SqlGenerator.h
 
 #FORMS    +=